package com.yuqiao.read.design.command;

public class Stereo {
    public void on(){
        System.out.println("Stereo is on");
    }
    public void off(){
        System.out.println("stereo is off");
    }
    public void setCD(){
        System.out.println("Stereo no CD video");
    }
    public void setDvd(){}
    public void setRadio(){}
    public void setVolume(float volume){
        System.out.println("volume = [" + volume + "]");
    }
}
